The document summarizes a seismic risk reduction program for Tehran, Iran. Tehran has a population of 8 million that increases to 10 million during the day. It is located in a seismically active area near the Alborz Mountains. The program involves assessing the seismic hazard, vulnerability of buildings and infrastructure, and risk to develop mitigation plans for new and existing structures. The goal is to define roles for government and private sectors in disaster management before, during, and after earthquakes.

1. Seismic Risk Reduction Program
for the Mega City of Tehran, Iran
Hamzeh Shakib
Professor, Dept. of Civil Engineering, Tarbiat Modares University, Tehran,
Iran
and Member of Tehran City Council

2. TEHRAN POPULATION
population : 8,000,000
In daytime: 10,000,000
No of districts: 22
district 4 : 800 thousand.
district 22: 100 thousand.
Land area :620 square km
Population density: 11000 (people per sqKm)

4. Seismic Hazard
Location of Tehran Alborz mountains, which
form part of the Alps-Himalayan zone.
High seismic potential
historical seismic data several strong
earthquakes with return periods of about 150 years.

5. Main active faults:
Mosha Fault
North Tehran Fault
South and North Ray Faults

6. Vulnerability Assessment
Residential Buildings
Official Buildings
General Buildings
Infrastructures
Water pipeline, Gas pipeline , Electricity network,
Communication network, Bridges and roadways

7. Master plan of seismic risk reduction program
The program consists:
 Assessment of seismic hazard,
 Vulnerability
 Risk for mitigation plan of the new and existing urban
elements.
 Public training program,

9. Goal
The key goal of this program is to identify the roles and
responsibilities of the governmental and private sections
with regard to the disaster management before, during and
after an earthquake occurrence.

10. Thank you